Mop.



P. BROWN.

MGP.

APPLICATION FILED IIIIIJI, 191s.

PIII'IIIIIIIII ma@ II IQI'I.

Z SHEETS-SHEET l.

P. BROWN.

MOP. APPLICATION FILED IAN.2. IsIs.

Patented Dec, l1, 1917.

2 SHEETS-SHEET 2.

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Specification of Letters Patent.

Patented Dec. 11, 191'?.

.application filed. January 2, 1915. Serial No. 86.

.fb all whom t may concern:

Be it hnown that l, Ferien laoivn, a citi .ten of the United `States, and a resident of the city of Chicago, in the county of l@ooit and ttate of illinois, have invented certain new and useful improvements in Mops; and lf do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the numerals of reference marked thereon, which forni a part of this specification.

fi. great many different types of oil inops have been devisedwith various objects in view, particularly that of permit-ting de tachment of the mop fabric from the mop head for the purpose of cleaning the mop continuous use.. in objectionable feature to practically all previous construe tions has been the necessity of handling the oily and dirty mop fabric in detaching the inop fabric from the mop head.

'lhis invention relates to a mop head constructed for use upon a particularl hind of inop fabric whereby means are provided for attaching and detaching the niop` fabric from the mop head without necessitating handling of the mop fabric, particularly in detaching the same, it only being necessary to actuate the mechanism by the lingers, the inop fabric immediately falling away from the mop headn lt is an object, therefore, of this invention to construct a device wherein expandible means are provided on the mop head for en gaging a mop fabric thereto, and when released permitting the mop fabric to fall away therefrom without necessitating con tact of the hands of the user "ivithfthe oily fabric of the mop.

lt is also an object of this invention to construct a mop head provided with 1novable am operated members adapted to engage the fabric of a mop upon the mop head and to release said fabric by release movenient of a cani, said cam so shaped as to re niain in a locked position with the members expanded to hold the mop fabric attached Without auxiliary locking' means lt is also an object of this invention to construct a device wherein pivotally con nected members are expandible away from one another upon a base plate and flanged to engage the fabric of a mop, and equipped with mechanism for moving and maintainingthe saine in an expanded position.

lt is furthermore an important object of this invention to construct a combined mop head and mop fabric, the mop fabric being a continuous closed loop attachable upon the mop head by the expansion of flange mem bers forming a part of said mop head, thus obviating the use of supplementary attaching means heretofore used threaded through the mop fabric.

It is finally an important object of this invention to construct a device simple in operation and acting efficiently to perform the purpose, permitting ready detachment ofia mop fabric from the mop head without necessitatingr contact with the hands.

Theinvention (in a preferred formi is illustrated in the drawings and hereinafter more fully described.

i In the drawings: i Figure l is a top planvievv of` a. device `embodying the principles of my invention.

Fig. 2 is a bottom plan view of the mop head, With'the mop fabric removed.

F ig. 3 isa section taken on line 3--3 of Figi.

Fig. e is a detail section talten on line 4wd oflfigl.

Fig. 5 is a detail section taken on line `of Fig. 3. i

i taken on line Tf-7 of Fig. l.

Fig. 8 is a fragmentary plan view illustrating a modified form of device.

As shown in the drawings:

The reference numeral l, indicates a base plate, which is oval in shape and more or less pointed at one end, and pivoted on the upper surface thereof at the pointed end by a pin 2, are expandible engagement members for the mop fabric, each of which consists of a web 3, of double thickness, and an outwardly concave flange 4, proj ecting above and below said web and conforming substantially to the outline of the base plate l. Short arc shaped slots 5, are formed in said. plate l, with the pivot 2, as a center, and engaged through each slot are angedstuds or rivets 6, which are rigidly attached to the till 'Ill

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Webs 3, fof the eXpandible members, thus guiding and limiting said membersin"their respective movements.

Integral ears 7, are struck upwardly from sa'id base'p'late 1,' leaving apertures' therein,

and a handlesocketmember 8, p'rovi'ded with tongues 9, is pivoted to said ears by means of rivets l0, extending through said ears and tongues respectively. The under edge of ea'ch'of'said'tongues 9,7is straight to limit the forward or upward swinging movement of the handle socket member 8, about the fpiv'ots AilO, as `rclearly shown -in Fig. f3, "although the-same may'readilyswing down i into aipesitionsubstantially1parallelftof the -base`rplate l, if: so desired. Pivoted vflat upon t the upper" surfaceof' the f main 'base plate l, -jbymeans`- of a'pivot pin orrivet` 11,'isi'a double f'cam vmember 12, having l upwardly fdirecte'd'linger pieces lB'and le, integral ztherewith. 'The' two 'camsurfaces or edges f'the' cam members l2, la re similar' in'- sha-pe, and near the outer end of said camsurfaces adjacent the linger pieces land le, respectivel`y, the Acurvature*isthat of `ain arc of a itcircle AVwith -a vcenter coincident with the "center ofrotation of the Caml-2. There f's13ective'webs' 3; of the expandi'ble members are provided with curved recesses 15,= int-o whichthe'curved canredges 'engage when *the cam is rotated, to spread-'said respective vn'iei'nbersV away from one another.

n the modification ofJ myinvention' illustrated in Fig. 8, l have shown the' cam edges 355 ofIV a ca"1n6,"as' serrated, although the cam, las before, is mount'e'diipon a-pivot'lor'- rivet pin 17, and'provide'd with finger actuating pieces 18`-and 10, respectively; The 'web imembers "3, of the eXpa'n'diblemembersE are 40Y provided with serrated recesses 20, whichcoy*act with'l theserrationslin the* c'a'meclges of y the cam, so that when the cam is moved5 into san adjustedfpositienlit is prevented from slipping back or moving into any'other vrposition,lclne toL the engagement r()f1said=ser rations with one another.

*The operation isfaslfol-low's: n

When it is desired to attachlthe lmopto "tlliemo'pbeacht the'fhandle socket member 8, is swung3 downwardly a'bout'its pivotsfl't), into a substantially'boriontal posit-ionfand i the linger pieces f3 and Mfareactnated to movef they cam into" such'position that said finger pieceslare substantially in longitudi- 'iialfalineinent with' the longitudinal axis of *the mephea'd. Thispermits the expand'ible members-"e, to be moved inwardly toward "o'neanother'about' the pivot 'connection 2, ltand"amopf fabric'may then be attached to the i'noplhea'd` The 'mop fabric, which -is indicated -rby' the reference 'numeral 21, consists ofcatpllurality'of strands of'fabric' se- 'curely"connected tcgether at the hem 22. of the mop" fabric, andthe entire mopfabric "is closed' loop orlcontinuous element. 'The hem 22, of the mop fabric is placed around tliefoutwardly concave flanges Il, of the cxpandible members of the mop head, or the nicp h-iad may be inserted into the mop "fabric withsaidtlanges engaging the hem thereof,l and thenthe cam l2, rotated by its linger pieces to expand the expandible `members, thus forcing the flanges l, of the respective members aniwardly away from one another, causing the mop fabric 'to tighten'uponithe mop head with the hein engaged in the outwardly concave liangcs, As the cam l2, `isrotatc'd"into an cxtreme 'position,inasmuch -aslthe curvature ot thc 'cailnengaging cdgeslthercof ends in an are of a circlestruck about the center of pivotal imovement ofthe cam,` a wedging elicct is lmaintained which holds the expandil'ile 2members apart, andthelline of thrust-on Vthecam is directly through the pivotal ccnter thereof, so that there is no tendency l'or thesame to accidentally rotate reversely and vthus'loosen the expandible members. Allier the expandible members have beenr so adijustedthe socket member S, is swung upwardly'into'the inclined position shown in -Fig 3,"andthis position of the same pre- 'vents the iingerpiece 1l, of the cam from lmoving therepast and becoming loosened in f the event that the cani should be accidentally struck.

lin' the'modification of my invention illusl trate'd inf F ig. 8, I have shown the cam edges of the cam member'lG, as wellas the recesses inthe'ftlangcs of theexpandible members serrated,sothatthereis no possibility of ijarring or knocking of the mop head causing "a'lcosening of the' cam which maintains the ffexpandibleV members in expanded position.

I am aware that various details of con- Nstructionmay be varied through a wide range without departing from the principles Yfof this inventiom'and'l therefore do not purpcse limiting the patent granted otherwise 'than necessitated'by the prior art.

1. ln a device of the class described `a lbase plate, expandible l'members pivoted lthereon, anda double cam for actuating said -expa'ndiblev members into expanded position 'to-clamp a mop fabric thereto.

2. In a device of the class described, the lcombination with a' closed one piece mop fabric, vof a'mop head'plate, a double cam pivoted thereon, 4and expandible means "adapted to be engagedv and actuated by said cam to engage the mop fabric to tighten the same 'on said vmeans by expansion.

B In a "device of the class described.y the rlcombinationwith a mop head plate having arc shaped slots therein, of a unitary continuous closed mop fabric, expandible means f onsaid mopf'head plate movable away from llone another for releasably maintaining said Vmop fabric attached thereto, andvstuds rig- Cfr-1 idly secured to said expandible means projecting through the slot in said mop head plate for guiding and limiting the moven ment of said expandible means.

4 ln a device of the class described a base plate, a plurality of expandible mem bers pivoted thereon, a handle socket pivoted on said base plate, a cam pivoted on said base plate adapted to coact with said expandible members to force the same apart, and means on said cam adapted to be engaged by said handle socket to prevent retractive movement of said cam.

5. ln a device of the class described a mop head plate, pivotal expandible means thereon adapted to be moved apart, a continuous closed mop fabric adapted to be engaged by said means to be retained thereon, and a cam the curvature of which is such that when actuated said cam acts to separate said cxpandible members moving into a dead center position to prevent accidental release move ment thereof.

d In a device of the class described the combination with a mop fabric, oi a base plate, expandible members pivoted thereon, a double cam pivoted on said base plate adapted to actuate said members, linger pieces integral with said cam for actuating the same to move said members apart to clamp said mop fabric thereto, and means associated with said base plate and members to guide and limit the movement of* said members.

1n testimony whereof I have hereunto subscribed my name in the presence of two subscribing Witnesses.

PETER BROWNu Witnesses:

CHARLES WV. HILLS, Jr., FRANK IQ HUDSON.

@epica of this patent may be obtained for ve cents each, by addressing the Commissioner of Patente, Washington, D. C. 

